CVE-2022-31075
KubeEdge DoS when signing the CSR from EdgeCore
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. Prior to versions 1.11.1, 1.10.2, and 1.9.4, EdgeCore may be susceptible to a DoS attack on CloudHub if an attacker was to send a well-crafted HTTP request to `/edge.crt`. If an attacker can send a well-crafted HTTP request to CloudHub, and that request has a very large body, that request can crash the HTTP service through a memory exhaustion vector. The request body is being read into memory, and a body that is larger than the available memory can lead to a successful attack. Because the request would have to make it through authorization, only authorized users may perform this attack. The consequence of the exhaustion is that CloudHub will be in denial of service. KubeEdge is affected only when users enable the CloudHub module in the file `cloudcore.yaml`. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. As a workaround, disable the CloudHub switch in the config file `cloudcore.yaml`.
KubeEdge es un sistema de código abierto para extender las capacidades de orquestación de aplicaciones nativas en contenedores a los hosts en Edge. En versiones anteriores a 1.11.1, 1.10.2 y 1.9.4, EdgeCore podía ser susceptible de un ataque DoS en CloudHub si un atacante enviaba una petición HTTP bien diseñada a "/edge.crt". Si un atacante puede enviar una petición HTTP bien diseñada a CloudHub, y esa petición presenta un cuerpo muy grande, esa petición puede colapsar el servicio HTTP mediante un vector de agotamiento de memoria. El cuerpo de la petición está siendo leída en la memoria, y un cuerpo que es más grande que la memoria disponible puede conllevar a un ataque con éxito. Como la petición tendría que pasar por la autorización, sólo los usuarios autorizados pueden llevar a cabo este ataque. La consecuencia del agotamiento es que CloudHub estará en denegación de servicio. KubeEdge está afectado sólo cuando los usuarios habilitan el módulo CloudHub en el archivo "cloudcore.yaml". Este error ha sido corregido en Kubeedge versiones 1.11.1, 1.10.2 y 1.9.4. Como mitigación, deshabilite el interruptor CloudHub en el archivo de configuración "cloudcore.yaml"
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-05-18 CVE Reserved
- 2022-07-11 CVE Published
- 2024-02-01 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
- CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://github.com/kubeedge/kubeedge/security/advisories/GHSA-x3px-2p95-f6jr | Third Party Advisory |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linuxfoundation Search vendor "Linuxfoundation" | Kubeedge Search vendor "Linuxfoundation" for product "Kubeedge" | < 1.9.4 Search vendor "Linuxfoundation" for product "Kubeedge" and version " < 1.9.4" | - |
Affected
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| Linuxfoundation Search vendor "Linuxfoundation" | Kubeedge Search vendor "Linuxfoundation" for product "Kubeedge" | >= 1.10.0 < 1.10.2 Search vendor "Linuxfoundation" for product "Kubeedge" and version " >= 1.10.0 < 1.10.2" | - |
Affected
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| Linuxfoundation Search vendor "Linuxfoundation" | Kubeedge Search vendor "Linuxfoundation" for product "Kubeedge" | >= 1.11.0 < 1.11.1 Search vendor "Linuxfoundation" for product "Kubeedge" and version " >= 1.11.0 < 1.11.1" | - |
Affected
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